Thank you Andy for your reply.
Do you know that for sure (have you talked to adm. committees about this)?
If they in fact do not verify it, isn’t it an invitation for abuse?
One could claim that he/she was offered admission to top 1 school, but email to another(competitor or worse) school asking about early decision.
And this another school may be more likely to offer an admission(or at least take another look at this candidate), since this candidate is so good that he/she was offered admission to Top 1 school.
He/she could prefer NOT to go to top 1 school for whatever reason (not enough money, location, etc.)